Re: Game for Ubuntu...?

Few of the commercial (for-purchase) games available on 12.04 have moved over to 12.10 yet, since 12.10 doesn't officially launch until the 18th. Give it another week or so, and you'll see some high quality games in the Ubuntu Software Center that you'll be able to buy.

If you are asking about a problem with your system, make sure to give details about your setup. OTHERWISE, NO ONE CAN HELP YOU.